Astronauts are( )all kinds of tests before they are sent to a spacecraft.
A.正确答案Asubjected to
B.related to
C.opposed to
D.devoted to
Astronauts are( )all kinds of tests before they are sent to a spacecraft.
Astronauts are( )all kinds of tests before they are sent to a spacecraft.
A.正确答案Asubjected to
B.related to
C.opposed to
D.devoted to